Can parents agree on child support without going to court?

Many parents would rather settle child support between themselves than argue about it in a courtroom. That is often possible, and courts and agencies generally encourage it. But child support is not an ordinary private deal. The law treats it as money for the child, every state has guidelines that set a presumed amount, and an agreement only becomes enforceable when a court or the state child support agency turns it into an order.

This guide explains how those pieces fit together: why the guideline amount is the starting point, why support usually can’t be waived, what an informal arrangement can and can’t do, and how to use the child support calculator to see the guideline amount before you negotiate. It describes the rules in general. Each state sets its own procedures, so check your state’s rules, and nothing here predicts what a court will decide in a particular case.

The guideline amount is the starting point

Federal law requires every state to have child support guidelines and to treat them as the default. Under 42 U.S.C. § 667(b)(2), there is a rebuttable presumption in any judicial or administrative proceeding that the amount the guidelines produce is the correct amount of child support. The federal regulation, 45 CFR 302.56, applies the same presumption to setting and modifying orders, and says that findings rebutting it must state the amount the guidelines would have required and justify why the order is different.

That matters for agreements. When parents bring an agreed amount to a court or agency, the agreed figure does not replace the guidelines. The court or agency works out the guideline amount, compares the two and, if they differ, decides whether the difference is justified. The federal Office of Child Support Enforcement puts it plainly in its explanation of how child support works: parents who can work out a fair agreement can avoid support hearings, but the court’s interest is in whether the agreement follows the guidelines, is fair to both parties and protects the child’s welfare.

An agreement that matches the guideline amount is usually the simplest to approve. One that differs needs a reason the state recognizes, which is the same process a court follows for any deviation. The guide to when courts deviate from the guidelines covers those reasons and the findings in detail.

Why parents generally can’t waive child support

The most common misunderstanding is that child support belongs to the parent who receives it, so that parent can give it up. Courts generally see it the other way round: the right to support belongs to the child, and parents can’t bargain it away.

A recent example comes from Maryland. In a 2025 decision, the Supreme Court of Maryland upheld a trial court that refused parents’ joint agreement for no child support at all. The court held that the right to support is held by the child, not the parents, so even an agreement both parents wanted could not take the issue away from the court.

Other states build the same idea into their statutes. California lets parents stipulate to a child support amount subject to the court’s approval, but under Cal. Fam. Code § 4065 the court can’t approve an amount below the guideline formula unless the parents declare that they are fully informed of their rights, are agreeing without coercion or duress, that the agreement is in the children’s best interests and that the children’s needs will be adequately met. If an agreed order is below the guideline amount, either parent can later ask to bring it up to the guideline level without showing any change in circumstances. Texas lets parents agree in writing to support terms, including amounts that vary from the guidelines, but the court adopts the agreement only if it finds it is in the child’s best interest (Tex. Fam. Code § 154.124).

Public assistance adds another party. A family that receives Temporary Assistance for Needy Families must assign its right to support to the state, up to the assistance paid, under 42 U.S.C. § 608(a)(3). In those cases the parents can’t settle support on their own, because part of it is owed to the state. California, for example, requires the parents to declare that the right to support has not been assigned before a court can approve a below-guideline agreement, and its child support agency can’t agree to a below-guideline order for a family receiving cash aid.

Informal agreements compared with court orders

Parents sometimes skip the court entirely and simply agree that one will pay the other a set amount each month. That can work while both parents keep to it, but an informal arrangement has real limits.

It is hard to enforce. The federal explanation notes that an arrangement parents make themselves sits outside the public child support system, and enforcement through it starts only after a parent applies for services. Without an order, there is no income withholding, tax refund offset or other tool described in the guide to child support enforcement.

It doesn’t change an existing order. If there is already an order, a side agreement to pay less doesn’t change it. Payments keep coming due at the ordered amount, and federal law makes each payment a judgment when it falls due that can’t be reduced retroactively. A parent who pays less under an informal deal can end up owing arrears, in many states with interest; see back child support, arrears and interest. The federal guidance also notes that gifts or payments made outside the order are generally not credited against it.

It can be undone by either parent. Either parent can stop following an informal agreement at any time, and either can apply to the child support agency or the court for an order. The court or agency then starts from the guideline amount, whatever the parents had arranged.

If parents want a different amount under an existing order, the way to do it is a modification approved by the court or agency, as explained in how to modify child support.

Turning an agreement into an order

There are usually several routes to make an agreement enforceable:

• An agreed order in a court case. In a divorce, separation, custody or parentage case, parents can file a written agreement or stipulation with the court, often with the state’s child support worksheet attached. A judge or hearing officer reviews it against the guidelines before signing the order.
• Through the child support agency. Some agencies help parents reach an agreement and then present it for an order. New York City’s child support office, for example, lets parents discuss and sign a child support agreement with its staff before going to Family Court, where an order is issued based on the agreement.
• Mediation. Many courts offer mediation in family cases. A mediated agreement on support still goes to the court or agency for approval.

Once an agreement is part of an order, it is enforced like any other order. Texas, for example, says agreed support terms in an order can be enforced by all the remedies available for a judgment but are not enforceable as a contract.

Using the guideline amount as your starting point

The most useful step before negotiating is to find the guideline amount, because that is the figure a court or agency compares an agreement with. Take two parents with two children who live mainly with Parent B, where Parent A earns $60,000 a year and Parent B earns $40,000. In Texas, the guideline amount is about $1,050 a month. With the same incomes in California, it is about $1,332 a month, and in Maryland, about $1,061 a month.

The same agreed figure could therefore be above the guidelines in one state and below them in another. Running your own numbers through the child support calculator gives an estimate for your state, with the worksheet behind it. If the children spend substantial time with both parents, the parenting time calculator counts overnights from a schedule, since many states adjust the amount for them. If you already have an order, the modification calculator compares it with the current guideline amount.

An estimate is a starting point, not the final figure. The official worksheet can include health insurance, child care and other details, and courts can deviate from the guideline amount. Each state page on this site links the state’s official calculator and worksheet, so you can check the figure against the state’s own tools.

When to involve the agency or a court self-help center

Parents can often reach an agreement on their own, but some situations call for the state child support agency or the court from the start:

• The family receives public assistance. The agency is usually already involved, and the state has a stake in the order.
• There are safety concerns. A parent who is afraid of the other parent should tell the agency or court; states have protections for family violence cases, described in how to apply for child support.
• Incomes are disputed or unclear. The agency can verify income through employer and other records that parents can’t easily get on their own.
• The parents live in different states. Which state can set or change the order is a separate question, covered in child support across state lines.
• Paternity hasn’t been established. An order for a child of unmarried parents usually requires legal parentage first.

Every state has a child support agency, and many courts run self-help centers with forms for agreed orders; each state page on this site links the state’s agency, such as the Office of the Attorney General of Texas, Child Support Division. For advice about your own case, a family law attorney or a legal aid program can help, particularly before you sign an agreement that differs from the guideline amount.